Inclined diaphragm of



(No Modem P. W. GATES. I INGLINED DIAPHRAGM .OF GYRA-TORY STONEBREAKERS. No. 525,405, I Patented Sept. 4. 1894.

, GATES, a citizen of the United States, residing flange being partlybroken away, and the and also to have the upper section of said UNITEDSTAT S PHILETUS WARREN GATES, OF CHICAGO, ILLINOIS, ASSIGNOR TO THEIRoN'woRKsoE SAME PLACE.

PAT NT O F CE.

GATES INCLINED DIAPHRAGM OFGYRATORY STONE-BREAKERS.

SPECIFICATION forming part of Letters Patent No. 525,405, datedSeptember 4, 1894.

Application filed October 23, 1,893. Serial No. 488,917. (No model.) l

To aZZ wltom it may concern.-

Be it known that I, PHILETUS WARREN at Chicago, inthe county of Cook andState of Illinois, have invented certain new and useful Improvements inInclined Diaphragms of Gyratory Stone-Breakers; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same. My invention relates toimprovements in removable, hard metal protecting diaphragms applied tothe ordinary cast metal, inclined, transverse diaphragm chutes arrangedand employed within the framing or casing of gyratory stone breakers orcrushers, for guarding the gearing or operating mechanism againstclogging or impeding substances, such as crushed rock, and the fineparticles thereof, which in the absence of such diaphragms woulddischarge upon the same and cause serious trouble.

My invention is an improvement on Patent No. 265,957, issued October 17,1882, and its object is to provide a surface protecting, chilled iron orsteel diaphragm of novel construction and arrangement, and which can bemore readily fitted in position and removed;

chilled iron or steel protecting diaphragm, by its peculiarconstruction, shape and arrangemen t, serve as a director of the crushedstone, while itserves for closing the pocket left between the two upperends of the two shortened-lower members, theouter wall, and the commoncast iron base-diaphragm.

The inventionwill be more fully under stood from the followingspecification and claims in connection with the accompanying drawings,in which latter- Figure 1. represents a vertical section of a gyratorystone crusher with my improvements applied thereto. Fig. 2. represents atop plan view of my said improvements, the crusher head being shown inhorizontal section and Fig. 3. represents a front elevation of the same,the tubular diaphragm extension or broken portions section lined.

In drawings,A is the gyratory shaft of the stone crusher, B thediaphragm chute, shown as cast integral with the frame 0 of the Icr'ushen. This diaphragm is; necessary in order to receive and directthe .rock, stone, or dust, laterally out of the casing, while fallingfrom the, crusher head andthus keep it away from the operating mechanismabout the lower portion of the gyratory shaft. The'diaphragm is providedwith a tubular extension or' flange b, which forms 'a seat for thehorizontal loose collar b which surrounds the shaft Aand therebyprevents the stone and dust from falling down between the shaft and Ithe said flange, but at the same time allows of the. gyratory movementof the shat'tfby sliding on the top of the said flange.

It has been found that the upper surface of the diaphragm chute wearsaway rapidlyv because of the continual strikingot the rock, 850.,thereon, and it becomes necessary to provide a protecting means for thesame, that can be quickly and readily applied and removed withoutdisturbing other parts of the machine. It has also been found in theordinary construction that rock, dust, 850., will accumulate on theinclined diaphragm behind the tubular extension or-fiange 1), until itinterferes with the" action of the crusher head above. I avoid theseobjections by constructing the removable chilled diaphragm D in threeseparable parts (1, 01, d The parts d, and d being similar in form andconstruction to one another, and.',adapted to be in.- serted on eachside of the tubular extension I) of the diaphragm B; said parts cl, (1,being so formed that when in position,'they will be locked or preventedfrom sliding out, by their ends engaging the sides of the tubular extension, but said ends are not of sufficient length to meet in rear ofsaid extension or to interfere with their ready insertion into theeasing 0 so as to extend partially about therear half of said tubularextension I) as indicated by the dotted-lines 00-00. The third partdofthe chilled diaphragm has, as a whole,the form approximately of awedge, the apex or highest point forming a ridged at its middle, and theportion each side of said ridge, dropping to form two downwardly andforwardly inclined wings c, c, the ends of said wings resting upon andoverlapping the re-' spective ends of the parts (1, d,'on each sideofthe tubular extension or flange b, the ridge (1 being supported by aridge shaped extension 1) of the tubular flange b. It can readily beseen that any rock or dirt falling behind the tubularextension b willstrike the ridge (1 and immediately slide down one or the other of theinclined wings c, 0, onto the diaphragm plates cl, cl, which willdischarge said rock or dirt at the front of the machine. By thispeculiar construction of the diaphragm in three parts, and of such novelform, the whole diaphragm can be instantly changed when desired; and asthe parts d, d, automatically look themselves in position when insertedon account of their inner ends extending past'the widest portion of thetubular extension they cannot become loose or detached until they areturned or tilted in the casing C so as to disengage their ends from thesurface of the tubular extension.

It is obvious that the improved construction of hard metal wearingsurface for the inclined diaphragm of stone breakers, would be useful,in the manner as described, whether the base upon which it is applied ismade integral with the frame, or constructed separately and bolted inposition in the manner described in the Letters Patent hereinbeforereferred to. i

What I claim as my invention is- 1. The inclined diaphragm chute formedof a base portion having a tubular extension, and a removable chillediron or steel wearing portion consisting of three separable parts,

the upper part forming a continuation to the one of which is ridgeshaped and overlaps the others, substantially as described.

4. Theinclined diaphragm chute formed of a base portion and a removablewearing portion consisting of separable parts one of which is ridgeshaped, substantially as described.

In testimony whereof I hereunto affix my signature in presence of twoWitnesses.

PHILETUS WARREN GATES.

Witnesses:

H. W. HoYT, J. L. FARGO.

